JP5914190B2 - Discharge device for processed products in processing machines - Google Patents

Description

  The present invention relates to an apparatus for discharging processed products in a processing machine for discharging processed products such as scraps and products falling from a main body of a processing machine such as a laser cutting machine.

  Generally, in a processing machine such as a blank machine, a scrap box (sometimes referred to as a scrap bucket) that can be inserted and pulled out by a caster is provided below a processing area of a processing machine body (see, for example, Patent Document 1). .

  FIG. 15 shows an example. In FIG. 15A, an insertion space 202 is provided in the lower part of the processing area of the processing machine main body 201, and a scrap box 210 with casters 228 is inserted into the insertion space 202, and can be pulled out as necessary. In the processing machine main body 201, if the directions orthogonal to each other in the horizontal plane are the X-axis direction and the Y-axis direction, a plurality of scrap boxes 210 are arranged side by side in the X-axis direction, and each scrap box 210 is inserted in the Y-axis direction.・ It is arranged so that it can be pulled out.

  Each scrap box 210 receives a processed product (scrap, product, etc.) falling on the table 215 shown in FIG. 15B while being inserted below the processing area of the processing machine body 201. When the scrap box 210 is full, the handle 279 is pulled as appropriate, and the scrap box 210 is manually pulled out of the processing machine body 201 using the casters 228 and collected on the table 215. Was discharged elsewhere.

JP 2010-99696 A

By the way, conventionally, since it is necessary to pull out the entire scrap box 210 which is a heavy object by human power and discharge processed products such as scraps and products dropped into the scrap box 210, it has been a heavy labor work. Also, because of heavy labor, neglecting regular discharge work has caused a problem that the surrounding environment deteriorates. For example, if the processing product is forgotten to be discharged and the processing product exceeding the allowable amount is accumulated on the scrap box 210, the scrap box 210 may overflow and be unable to be pulled out. In this case, it is necessary to stop the processing machine main body 201, and a person enters and scrapes the inside of the processing machine main body. In addition, the overflowing processed product may cause troubles that enter or get caught in other movable parts.
On the other hand, there is an idea that the processed product dropped on the scrap box is automatically moved to the discharge side using a belt conveyor or a vibration feeder, but the structure becomes large and the vibration has an adverse effect on the machine body. There was a risk of doing so.

  In consideration of the above circumstances, the present invention is capable of discharging a processed product falling from the processing machine body to another place with a small amount of manual labor, and has a simple structure and a machined product discharging device with less vibration. The purpose is to provide.

  In order to solve the above-mentioned problem, the invention of claim 1 is a discharge device that is installed at a lower portion of a processing machine main body and receives a processed product such as scrap or product falling from the processing machine main body and discharges it to the outside. A main box that is disposed at a lower portion of the processing machine main body and receives the processed product falling from the processing machine main body, and a recovery box that is detachably attached to the discharge side of the processed product of the main box, The main box is equipped with a main frame and a slide table on the main frame so as to be slidable in a linear direction connecting the discharge side and the non-discharge side, and receiving the processed product falling from the processing machine main body. The processed product is mounted on the discharge side from the slide table by sliding the slide table back and forth between the discharge side and the counter discharge side. A slide drive mechanism for the feed movement to said collecting boxes, and characterized in that it comprises a.

  A second aspect of the present invention is a processing apparatus discharge apparatus for a processing machine according to the first aspect, wherein the slide drive mechanism reciprocally slides the slide table to the discharge side and the counter discharge side. And a drive control means comprising a speed control mechanism for changing the speed of the rod of the air cylinder mechanism during the forward movement and the backward movement.

  A third aspect of the invention is a discharge device for a processed product in the processing machine according to the first aspect, wherein the slide drive mechanism is installed on the main frame and rotates a cam, and the slide And a cam follower that is coupled to a table and engages with the cam to extract the rotational movement of the cam as a reciprocating sliding movement of the slide table. The cam profile of the cam mechanism It is characterized by changing the speed between moving and returning.

  Invention of Claim 4 is the discharge apparatus of the processed product in the processing machine of any one of Claims 1-3, Comprising: A slide is carried out by forcibly stopping the slide table sliding to the discharge side A stopper for moving the processed product on the table to the collection box side using inertia is provided.

  According to a fifth aspect of the present invention, there is provided an apparatus for discharging a processed product in the processing machine according to the first aspect, wherein the slide driving mechanism slides the slide table back and forth between the discharge side and the counter discharge side. And controlling the expansion and contraction operation of the rod of the cylinder mechanism, and providing a sudden reversal operation point that suddenly reverses from the forward operation to the reverse operation in the middle of the stroke of the rod, Drive control means for setting so as to satisfy the condition for the processed product on the table to slide out.

  A sixth aspect of the present invention is an apparatus for discharging a processed product in the processing machine according to the first aspect, wherein the slide drive mechanism is installed on the main frame and rotates a cam, and the slide A cam follower that is coupled to a table and engages with the cam to extract the rotational movement of the cam as a reciprocating sliding movement of the slide table, and the cam profile of the cam mechanism The slide table is provided with a sudden reversal operation point at which the slide table suddenly reverses from the forward operation to the reverse operation, and the acceleration of the sudden reverse operation is set so as to satisfy the condition for the processed product on the slide table to slide out. And

  The invention of claim 7 is the discharge device for the processed product in the processing machine according to any one of claims 1 to 6, wherein a sliding material for slidably guiding the slide table to the main frame is provided. It is provided.

  The invention according to claim 8 is the discharge device for the processed product in the processing machine according to any one of claims 1 to 7, wherein a wheel capable of traveling on a floor surface is attached to a lower portion of the main frame. It is characterized by being.

  The invention of claim 9 is the discharge device for the processed product in the processing machine according to any one of claims 1 to 8, wherein the discharge side and the counter discharge side can be replaced, and the collection box is In addition to being detachably mounted on the discharge side, the moving direction of the processed product by the slide drive mechanism can be switched.

  According to the first aspect of the present invention, by the reciprocating slide operation of the slide table by the slide drive mechanism, the processed product such as scrap or product placed on the slide table can be sent and moved to the collection box mounted on the discharge side. . When the collection box is full of processed products, the processed products can be easily discharged outside by removing the collection box from the main box. Further, by attaching the collection box that has been emptied after discharge to the main box again, it is possible to prepare for subsequent discharge of the processed product.

  As described above, since the processed product can be discharged by the collection box attached to the main box, it is not necessary to move a large and heavy main box, and manpower work can be reduced. In addition, the structure for sliding the slide table back and forth does not need to be a large structure like a belt conveyor, and can be a simple structure, so that it is possible to easily perform maintenance and the like.

  In addition, since the collection box can be separated from the main box, only the collection box can be removed and the processed product can be discharged to the outside during the machining operation of the processing machine body, so that the efficiency of the machining operation is not impaired.

  In addition, processed products such as scraps and products that have fallen on the slide table are automatically sent to the collection box, so that the processed products can be prevented from accumulating inside the processing machine body. It is possible to solve the problem of scraps scattered inside the machine body.

  Further, since it is only necessary to check the collection box, it is possible to eliminate the trouble that the scrap box cannot be pulled out due to a pile of processed products due to forgetting to discharge.

  In addition, since the processed product is moved by a reciprocating slide operation, that is, a stroke operation of the slide table, unlike the vibration feeder, the processed product is moved by using vibration. Propagation to the main body side can be prevented as much as possible, and deterioration of processing quality can be avoided in the case of laser processing.

  According to the invention of claim 2, since the reciprocating slide of the slide table is performed by the cylinder mechanism, the structure can be simplified. In particular, when an air cylinder is used, it can be driven under environmentally friendly conditions.

  According to the invention of claim 3, since the reciprocating slide of the slide table is performed by the cam mechanism, piping equipment as in the case of sliding the slide table with an air cylinder or the like is unnecessary, and the configuration can be simplified.

  According to the invention of claim 4, since the processed product on the slide table is moved toward the collection box by the impact when the slide table that slides on the discharge side hits the stopper, the processed product on the slide table is moved. Can be prevented.

  According to the fifth aspect of the present invention, since the processed product on the slide table is slid by the movement of the cylinder mechanism that suddenly reverses from the forward movement to the backward movement during the stroke, the expansion / contraction speed of the rod of the cylinder mechanism is increased. There is no need for troublesome control, such as making it different between forward movement and backward movement. Therefore, for example, even when an air cylinder is used as the cylinder mechanism, it is not necessary to strictly control the speed. In addition, since it is not necessary to apply the slide table to the stopper, the stopper is unnecessary, so that unnecessary impact noise can be eliminated and the risk of breakage of the slide mechanism can be reduced. Even when an air cylinder is used, for example, it is only necessary to control the switching valve in the air circuit by a ladder sequence, so that the control can be facilitated.

  According to the sixth aspect of the present invention, the processed product on the slide table is slid and moved by the movement in which the operation direction of the slide table is suddenly reversed by the function of the cam, so that troublesome control is not required and the equipment is simplified. Can do. In addition, since it is not necessary to apply the slide table to the stopper, the stopper is not necessary, and it is possible to eliminate the generation of extra impact noise and reduce the risk of damage to the slider mechanism.

  According to the seventh aspect of the invention, since the slide table is guided by the sliding material provided on the main frame so that the slide table can be smoothly slid, the cost can be reduced by simplifying the configuration.

  According to invention of Claim 8, since the wheel was attached to the lower part of the main frame, the insertion / drawing-out operation | work to a processing machine main body can be performed easily.

  According to the ninth aspect of the present invention, the discharge direction of the processed product can be freely selected according to the surrounding environment of the processing machine.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing of the discharge device of 1st Embodiment of this invention, (a) is a perspective view which shows schematic structure of the whole processing machine containing the discharge device, (b) is a perspective view which shows the state which took out the discharge device, (C) is a partially enlarged view thereof. It is a block diagram of the said discharge device, (a) is a top view, (b) is EE arrow sectional drawing of (a). In the block diagram of the said discharge apparatus, (a) is a perspective view which shows the state which isolate | separated the collection | recovery box from the main box, (b) is a principal part enlarged view of (a). (A), (b) is a figure which shows each example of the air drive circuit of the air cylinder of the said discharge device. It is a figure which shows the 1st example of a structure of the air drive circuit for driving eight discharge apparatuses. It is a figure which shows the 2nd example of a structure of the air drive circuit for driving eight discharge apparatuses. It is a figure which shows the 3rd example of a structure of the air drive circuit for driving eight discharge apparatuses. It is a block diagram of the discharge device of 2nd Embodiment of this invention comprised so that a slide table could be reciprocatedly slid with a cam mechanism instead of the air cylinder of said 1st Embodiment, (a) is a top view, (b) Is a side view, and (c) is a cross-sectional view taken along line FF in (a). It is a block diagram similar to FIG. 2 of the discharge apparatus of 3rd Embodiment of this invention, (a) is a top view, (b) is sectional drawing. It is a block diagram of the air drive circuit of the air cylinder of the discharge device. It is a top view for operation | movement description of the discharge device, (a) is a diagram showing a state when the rod is positioned at one stroke end, (b) is a rod moved forward toward the other stroke end The figure which shows a state when a motion direction is reversed in the middle of a stroke, (c) is a figure which shows a state when a rod is again positioned at one stroke end after reversing a motion direction. It is a time chart which shows the operation content of the discharge device. It is a figure which shows schematic structure of the discharge | emission apparatus of 4th Embodiment of this invention, Comprising: A collection | recovery box can be mounted | worn with the both sides of the slide direction of a slide table, and the collection | recovery box which discharges a processed product as needed It is a top view of the discharge device which made it possible to freely select either one. FIG. 11 is a plan view for explaining an operation when moving the processed product to a collection box mounted on a different side from FIG. 11 in the discharge device, in which (a) shows a rod positioned at one stroke end. (B) is a diagram showing a state when the rod is moved forward toward the other stroke end and the operation direction is reversed during the stroke, and (c) is a diagram showing the state when the operation direction is reversed. It is a figure which shows a state when a rod is again located in one stroke end after. The example of the discharge apparatus of the conventional processed product is shown, (a) is a perspective view which shows the state which integrated the scrap box in the processing machine main body, (b) is a perspective view which shows the state which took out the scrap box.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First Embodiment>
1-7 is explanatory drawing of the discharge device of 1st Embodiment of this invention.

  As shown in FIG. 1A, the processed product discharge device 10 of this embodiment is a processed product such as scrap or product falling from the processing machine main body 1 in a processing machine such as a laser cutting machine. It is for receiving and discharging to the outside.

  In the processing machine main body 1, when the directions orthogonal to each other in the horizontal plane are the X-axis direction and the Y-axis direction, a plurality (eight in this example) of discharge devices 10 are arranged side by side in the X-axis direction for each processing region. Each discharge device 10 is disposed so as to be able to be inserted and pulled out in the Y-axis direction.

  As shown in FIGS. 1 (b), 1 (c) and FIGS. 3 (a), 3 (b), each discharging device 10 is disposed at the lower part of the processing machine body 1 and falls from the processing machine body 1. A main box 10A for receiving the product, and a collection box 70 detachably mounted on the processed product discharge side (the right end in the figure) of the main box 10A.

  The main box 10A is slidably mounted on the main frame 20 serving as a gantry for the entire apparatus and in a linear direction (Y-axis direction) connecting the discharge side and the non-discharge side on the main frame 20, and is a main body of the processing machine. 1 is a slide table 50 that receives a processed product falling from 1, a double-acting air cylinder (cylinder mechanism) 60 that reciprocally slides the slide table 50 to the discharge side and the counter discharge side, and an air drive circuit thereof. And a mechanism.

  As shown in FIG. 2, the main frame 20 has a rectangular box shape, and includes a bottom wall 21, side walls 22 standing on both side edges of the bottom wall 21, and slips disposed inside the bottom wall 21 and the side walls 22. A sliding member 25 made of a material having a small friction coefficient is attached to the inner surface and the upper surface of the sliding member mounting frame 23.

  Further, stoppers 26 for forcibly stopping the slide table 50 slightly before the end of the stroke of the air cylinder 60 when the slide table 50 slides to the discharge side are provided on both sides of the main frame 20 on the discharge side. In the vicinity of each stopper 26, an air cylinder 60, which is a main element of the slide drive mechanism, is disposed.

  The air cylinder 60 has a cylinder side connected to the main frame 20 via a cylinder receiving bracket 27 and a rod side connected to the slide table 50 via a rod receiving bracket 37. In addition, wheels 28 made of casters and rollers are attached to four locations on the lower surface of the main frame 20 so that the main box 10A can be taken in and out along the Y-axis direction with respect to the space below the processing machine body 1. It has become.

  On the other hand, the slide table 50 has a double structure of the lower slider 30 and the upper slider 40. The lower slider 30 is formed in an L shape outward from the upper end of the inclined side plate 33, the vertical side plate 32 erected from both side edges of the bottom plate 31, the inclined side plate 33 that opens to the outside continuous with the upper side of the vertical side plate 32. An L-shaped sleeve portion 34 that is bent and covers the upper end of the side wall 22 of the main frame 20 in a non-contact manner.

  An exposed plate surface 31a exposed from the upper slider 40 is secured on the bottom plate 31 on the discharge side of the lower slider 30, and narrowed side walls 31b are provided on both sides of the exposed plate surface 31a. The rod receiving bracket 37 on the slide table 50 side is attached to the outer surface of the narrow side wall 31b, and the air cylinder 60 is a space secured between the narrow side wall 31b and the side wall 22 of the main frame 20. 38.

  In the lower slider 30, the bottom surface of the bottom plate 31 and the outer surface of the vertical side plate 32 are in contact with the sliding material 25 attached to the sliding material mounting frame 23 of the main frame 20. The frame 20 is supported so as to be slidable in the longitudinal direction (Y-axis direction).

  Further, the upper slider 40 stands up so as to open outward from both side edges of the table bottom plate 41 and a flat table bottom plate 41 mounted on the bottom plate 31 of the lower slider 30 with an interval therebetween via the intermediate member 39. And an inclined side plate 42 mounted on the inclined side plate 33 of the lower slider 30. The end wall 46 is closed on the non-discharge side of the upper slider 40, but the end 43 on the discharge side is open.

  An air drive circuit (an example shown in FIG. 4 to be described later) of the slide drive mechanism drives the air cylinder 60 to slide the slide table 50 in the non-discharge side (in the direction of the solid arrow A in FIG. 1B). Is moved at a speed condition that the processed product on the slide table 50 slides relative to the slide table 50 (moves quickly), and slides toward the discharge side (in the direction of the dotted arrow B in FIG. 1B). When the table 50 is slid, the processed product on the slide table 50 is moved (slowly moved) at a speed condition where the processed product moves together with the slide table 50, thereby discharging the processed product from the slide table 50. It is configured to feed and move to a collection box 70 mounted on the side. By repeating this operation, the processed product of the slide table 50 gradually moves to the collection box 70 side.

  As shown in FIG. 3 (b), the collection box 70 includes a bottom plate 71, an end face plate 72 with a handle 79 on the front side in the pulling direction, left and right side plates 73, and a collection recess 74 provided on the back side of the bottom plate 71. The connection insertion piece 75 to be inserted into the insertion recess 29 at the discharge side end of the main frame 20, the connection fitting 76 to be fastened to the connection tool 77 on the outer surface of the side wall 22 of the main frame 20, and the main box 10A And a support bar 78 that supports the collection box 70 so that it does not fall when the box 70 is removed.

  FIGS. 4A and 4B show examples of an air drive circuit that realizes the above-described reciprocating sliding operation with different speeds.

  Here, by supplying pressurized air to the first port 61 of the two-port air cylinder 60 and exhausting it from the second port 62, the slide table 50 can be slid to the opposite side (solid arrow A direction). It is assumed that the slide table 50 can be slid to the discharge side (in the direction of the dotted arrow B) by supplying pressurized air to the second port 62 and exhausting from the first port 61. .

  An air supply / exhaust path in which supply / exhaust switching is performed by a solenoid switching valve 67 is connected to the air cylinders 60 on both sides in parallel so that the air cylinders 60 on both sides move synchronously. The solid line arrow and the dotted line arrow in the air circuit correspond to the slide directions A and B of the slide table 50, and when the slide table 50 moves in the A direction, air flows along the route of the solid line arrow. When the slide table 50 moves in the B direction, air flows along the route indicated by the dotted arrow. 4 (a) and 4 (b), for convenience, the air flow direction when the slide table 50 moves in the direction A to the circuit on the one air cylinder 60 side is indicated by a solid arrow, and the other air cylinder 60 side is shown. In this circuit, the air flow direction when the slide table 50 moves in the B direction is indicated by a dotted line.

  In the configuration example of FIG. 4A, the speed control mechanism 65 is inserted in the middle of the air piping on the second port 62 side. 4B, the speed control mechanism 65 is inserted in the middle of the air piping on the first port 61 side.

  The speed control mechanism 65 is a combination of a throttle 63 and a check valve 64, and pressurized air is supplied from the solenoid switching valve 67 to the second port 62 of the air cylinder 60, as indicated by a dotted arrow, and the first port 61. When air is exhausted from the valve to the solenoid switching valve 67, that is, when the slide table 50 slides in the B direction, the air flows through the throttle 63, so that the slide table 50 slides under a slow speed condition. .

  On the other hand, when the pressurized air is supplied from the solenoid switching valve 67 to the first port 61 of the air cylinder 60 and the air is exhausted from the second port 62 toward the solenoid switching valve 67 as indicated by the solid line arrows, that is, When the slide table 50 slides in the A direction, the check table 64 is opened without passing through the throttle 63 and air flows, so that the slide table 50 slides at a high speed condition.

  Here, switching control of the solenoid switching valve 67 is performed by a signal from a control unit (not shown), and the drive control means is configured by the control unit and an air drive circuit including a speed control mechanism 65. .

  By the reciprocating slide operation of the slide table 50 by the slide drive mechanism as described above, the workpiece W such as scrap or product placed on the slide table 50 is fed and moved as indicated by an arrow C to the collection box 70 mounted on the discharge side. can do. When the collection box 70 is filled with the processed product W, the processed product can be easily discharged to the outside by removing the collection box 70 from the main box 10A. In addition, by attaching the collection box 70 that has become empty after the discharge to the main box 10A again, it is possible to prepare for the subsequent discharge of the processed product.

  As described above, since the processed product can be discharged by the collection box 70 attached to the main box 10A, it is not necessary to move the large and heavy main box 10A. In addition, the structure for reciprocally sliding the slide table 50 does not need to be a large structure like a belt conveyor, and can be a simple structure. Therefore, it is possible to easily cope with maintenance.

  Further, since the collection box 70 is separable from the main box 10A, only the collection box 70 can be detached and the processed product can be discharged to the outside during the machining operation of the processing machine body 1, thereby impairing the efficiency of the machining operation. Absent.

  In addition, since the processed products such as scraps and products dropped on the slide table 50 are automatically sent to the collection box 70, it is possible to avoid collecting the processed products inside the processing machine main body 1. It is possible to solve the problem that scraps and the like are scattered inside the processing machine main body 1.

  Further, since it is only necessary to check the collection box 70, it is possible to eliminate a trouble that the scrap box cannot be pulled out due to a pile of processed products due to forgetting to discharge.

  In addition, since the processed product is moved by a reciprocating slide operation, that is, a stroke operation, of the slide table 50, unlike the vibration feeder, the processed product is moved using the vibration. Propagation to the machine body side can be prevented as much as possible, and deterioration of the processing quality can be avoided in the case of laser processing.

  Further, since the reciprocating slide of the slide table 50 is performed by the air cylinder 60, the slide table 50 can be driven under environmentally friendly conditions.

  Note that it is possible to drive the slide table 50 in the same manner by using a hydraulic cylinder or an electric cylinder in addition to the air cylinder 60. By using such a cylinder mechanism as a main element of the slide drive mechanism, The processed product can be discharged with a simple structure.

  Further, the processed product on the slide table 50 can be moved toward the collection box 70 by an impact (deceleration) when the slide table 50 that slides to the discharge side hits the stopper 26. It is possible to prevent stagnation of processed products in the process.

  Further, since the slide table 50 is guided by the sliding member 25 provided on the main frame 20 so that the slide table 50 can be smoothly slid, the cost can be reduced by simplifying the configuration.

  Moreover, since the wheel 28 is attached to the lower part of the main frame 20, it is possible to easily perform the operation of inserting / withdrawing the entire discharge device 10 into the processing machine body 1.

  Next, an operation example in the case where the eight discharge devices 10 are moved will be described.

  5, 6 and 7 are air circuit diagrams showing different operation examples.

  In the example of FIG. 5, an air drive circuit including a solenoid switching valve 67 is provided for each discharge device (represented by the slide table 50 in the drawing) so that each discharge device can be moved independently. In this example, the cutting device and the discharge device 10 where the scrap / product falls are determined from the processing program of the processing machine. Then, only the corresponding discharge device 10 is moved. In this way, the running cost can be reduced by moving each discharge device independently.

  In the example of FIG. 6, eight discharge devices (represented by the slide table 50 in the figure) are moved by a single solenoid switching valve 67, and an air circuit is connected in parallel to the air cylinder 60 of each discharge device. ing. In this case, there is an advantage that only one solenoid switching valve 67 is required.

  In the example of FIG. 7, the eight discharge devices are divided into several groups, and one solenoid switching valve 67 is provided in the group, and the air circuit is connected in parallel to the air cylinder 60 of each discharge device. . In this case, as the number of group divisions increases, the number of solenoid switching valves 67 used increases, but the number of solenoid switching valves 67 used can be reduced as compared to the example of FIG. In addition, air consumption can be reduced by taking off the groups that are not used.

  In order to realize a stable operation, as shown in FIG. 3, a full sensor (photoelectric sensor or the like) 80 that vibrates when the processed product sent into the collection box 70 becomes full in the collection box 70. May be attached. In such a case, it is possible to notify the operator that the processed product is full, so that it is possible to prevent forgetting to discharge the processed product.

  Further, a drop sensor 90 (a sensor for detecting a drop by vibration) may be attached on the slide table 50. In such a case, since it becomes possible to confirm whether or not the processed product has been dropped, it is possible to alert about the possibility of interference with the movable part on the processing machine main body 1 side, which can contribute to stable processing. .

  In the above embodiment, the case where the slide table 50 is reciprocally slid by the air cylinder 60 has been described. However, the slide table 50 may be reciprocally slid using a cam mechanism or a link mechanism.

Second Embodiment
FIG. 8 shows a configuration example of a discharge device using a cam mechanism as a slide drive mechanism as a second embodiment of the present invention. In this case, a motor 102 as a rotational drive mechanism is attached to a motor mounting bracket 101 fixed to the main frame 20, and a cam plate that rotates on a rotation shaft of the motor 102 in a plane parallel to the sliding direction of the slide table 50. 103 is attached. Further, a roller 155 as a cam follower is attached to a roller mounting bracket 150 fixed to the slide table 50, and the roller 155 is slidably fitted in the cam groove 104 of the cam plate 103.

  In this cam mechanism, when the cam plate 103 rotates at a constant speed, the roller 155 fitted in the cam groove 104 relatively moves along the cam groove 104, so that the slide table 50 slides back and forth. In this case, the speed change can be applied during forward movement and backward movement according to the profile of the cam groove 104 of the cam plate 103.

  When the reciprocating slide of the slide table 50 is performed by the cam mechanism as in this example, troublesome equipment such as air piping as in the case of sliding the slide table 50 with the air cylinder 60 as in the previous example is not required, The configuration can be simplified.

  Moreover, in the said embodiment, the speed at the time of reciprocatingly sliding the slide table 50 is set fast when moving to an anti-discharge side, and is set late | slow when moving to a discharge side, The process on the slide table 50 is carried out. Although the case where the processed product is fed and moved to the collection box 70 side has been described, the slide table 50 is moved when the processed product moves at a slide speed at which the processed product does not slide on the slide table 50 and slides toward the discharge side. It is also possible to configure so that the processed product is slid to the collection box 70 side by the inertia force due to the impact by being applied to the stopper.

  In such a case, since the speed conditions for reciprocating the slide table 50 can be made uniform, a simple drive system can be employed.

  As the guide means of the slide table 50, in addition to the sliding material 25, it is also possible to adopt a rolling element such as a linear guide such as a rolling guide, a free bear, or a roller.

<Third Embodiment>
By the way, in the first embodiment, the processed product is placed on the slide table 50 by making the moving speed condition of the slide table 50 during the forward movement different from the moving speed condition of the slide table 50 during the backward movement. Although the case of sliding in one direction has been described, the moving speed condition of the slide table 50 during forward movement and backward movement is not intentionally changed, and the forward movement operation of the air cylinder 60 during the stroke is performed. It is also possible to cause slippage between the processed product and the slide table 50 and to move the processed product toward the collection box 70 by reversing to the backward movement operation.

  The third embodiment shown in FIGS. 9 to 12 is an example of the discharge device in that case, and in this discharge device, as shown in FIG. 9A, the stopper 26 (see FIG. 2) is unnecessary. It has been removed. Further, as shown in FIG. 10, since the speed control of the slide table 50 is unnecessary, the throttle 63 and the check valve 64 as the speed control mechanism 65 are removed from the air drive circuit. Instead, a drive control means for controlling the solenoid switching valve 67 in a ladder sequence is provided in the slide drive mechanism for sliding the slide table 50, although not shown.

  This drive control means sends a command signal to the solenoid switching valve 67 to control the expansion / contraction operation of the rod of the air cylinder 60 (operation of the piston 66), and from the forward operation to the backward operation during the rod stroke. A function of setting a sudden reversal operation point for sudden reversal and setting an acceleration of the sudden reversal operation so as to satisfy a condition for the processed product W on the slide table 50 to slide out is provided.

  In FIG. 10, when the processed product W is now moved in the direction of arrow C where the collection box 70 is located, the drive control means moves in the direction of arrow B from one stroke end 60A to the other stroke end 60B. During the stroke in which the piston 66 is moving (forward movement operation) (that is, before reaching the other stroke end 60B), the forward movement operation (in the direction of arrow B from one stroke end 60A to the other stroke end 60B) is performed. A sudden reversal operation point is provided that suddenly reverses from the operation) to the backward movement operation (operation in the direction of arrow A from the other stroke end 60B toward one stroke end 60A). That is, as shown by the arrow D, the piston 66 is suddenly U-turned during the stroke.

  A speed condition (especially acceleration) from when one stroke end 60A is issued to the sudden reversal operation point, and a speed condition between reversal at the sudden reversal operation point and one stroke end 60A again. (Especially acceleration) is set to a condition in which the processed product W does not slide and move (a condition in which the processed product W moves at an acceleration that generates only an inertial force in a range smaller than the maximum static friction force between the processed product W and the slide table 50). Above, the acceleration (deceleration) at the time of sudden reversal at the sudden reversal operation point exceeds the condition that the processed product W on the slide table 50 starts to slide (the maximum static frictional force between the processed product W and the slide table 50 is exceeded). The condition is set so as to satisfy the condition of reversal at the deceleration at which inertial force is generated.

  For example, even if the slide table 50 is moved forward at a very low speed and reversed to the backward movement side, the inertial force generated at the time of reversal may not be so great as to cause the processed product W to slip. When the slide table 50 is moved forward at a certain high speed and reversed to the backward movement side, a large inertia force can be generated at the time of reversal, and the processed product W can be slid. . In particular, when the operation direction is reversed to the backward movement side by switching the solenoid switching valve 67 in the forward movement operation state while accelerating rather than the case of reverse movement to the backward movement side at a constant speed, A larger inertia force can be generated, and the processed product W can be reliably slid and moved.

  This will be described in more detail with reference to FIGS.

  The air cylinder 60 that reciprocally slides the slide table 50 is driven and controlled by the drive control means so that the piston 66 is suddenly reversed and turned back in the middle of the stroke with the one stroke end 60A against which the piston 66 hits as a base point.

  As shown in FIG. 12D, first, at the beginning of one operation cycle, the solenoid switching valve 67 is switched and held at the A position (A state) for moving the air cylinder 60 forward. At this stage, the speed of the piston 66 (slide table 50) changes as shown in FIG. 12B, and the acceleration of the piston 66 changes as shown in FIG. The stroke of the piston 66 gradually changes from zero (position where the piston 66 hits one stroke end 60A) to the sudden reversal operation point. During this time, the processed product W on the slide table 50 slips. Without moving (because the acceleration is within the range of the sliding start condition), it moves together with the slide table 50.

  Next, when the sudden reverse operation point is approached, the solenoid switching valve 67 switches from the A position (A state) to the B position (B state). Then, the air flow with respect to the air cylinder 60 is reversed, and as shown in FIG. 12B, the operation direction of the piston 60 is rapidly switched from the forward movement side to the backward movement side. At this time, as shown in FIG. 12 (c), a large deceleration occurs, whereby the inertial force acting on the processed product W exceeds the maximum static frictional force (acceleration exceeds the sliding start condition). Then, the processed product W slides and moves on the forward movement side on the slide table 50 to be slid to the backward movement side. Therefore, by repeating this operation cycle, the processed product W can be fed and moved toward the collection box 70.

  As described above, according to the discharge device of the present embodiment, the processed product W on the slide table 50 is moved to the collection box 70 side by the movement of the air cylinder 60 that suddenly reverses from the forward operation to the backward operation during the stroke. Therefore, as in the first embodiment, it is not necessary to perform troublesome speed control such as making the expansion / contraction speed of the rod of the air cylinder 60 different between forward movement and backward movement. Therefore, the throttle 63 and the check valve 64 as the speed control mechanism 65 are not necessary, and the equipment cost can be reduced. Actually, the speed control of the slide table 50 by the diaphragm 63 is difficult to adjust, and the adjustment contents may vary depending on the air pressure state in the factory. In the discharge device of the third embodiment, Since speed control having such an unstable element is not necessary, variations in operation quality can be eliminated and operation can be stabilized.

  Further, it is not necessary to forcibly stop the slide table 50 against the stopper 26 (see FIG. 2), so that the stopper 26 is not required, no extra impact noise is generated, and the risk of breakage of the slide drive mechanism can be reduced. Further, since the movement of the processed product W does not depend on the speed or stroke of the slide table 50, free and easy control such as shortening the operation stroke and shortening one cycle time becomes possible.

  The operation direction switching timing during the stroke of the air cylinder 60 may be appropriately determined based on factors such as time and pressure. However, a cylinder stroke position detection sensor is provided in the air cylinder 60, and the sensor You may set based on a signal.

  In addition, one discharging operation may be constituted by a single reciprocating operation of the slide table 50 or a plurality of reciprocating operations. Further, the discharge operation may be activated by a command from another host control device or by a start switch. In addition, if the discharge operation is set to be performed continuously, it is necessary to stop the discharge operation at an arbitrary timing. However, the stop may be performed by a command from the host controller or by a stop switch. May be. Alternatively, the reciprocating operation of the slide table 50 a predetermined number of times may be counted by a counter, and the control unit may determine the stop based on the counter signal.

  In addition, as in the third embodiment, a method for sliding the processed product by a sudden reversal of the operation direction of the slide table 50, and in the forward and backward movements as in the first and second embodiments. You may use together with the method of slidingly moving a processed article by changing the speed conditions at the time of a movement. For example, in the first embodiment, the slide table 50 is applied to the stopper 26 at the end of the forward movement, but the operation direction of the slide table 50 is suddenly reversed before it is applied to the stopper 26. It may be. By doing so, the processed product can be slid and moved during both reversal and backward movement.

  Moreover, in the said 3rd Embodiment, although the example of the slide drive mechanism using the air cylinder 60 was shown, also in the slide drive mechanism using a cam mechanism like FIG. 8, operation | movement similar to 3rd Embodiment. Can be performed. In that case, the cam profile of the cam mechanism provides a sudden reversal operation point at which the slide table 50 suddenly reverses from the forward movement to the backward movement, and the acceleration of the sudden reverse movement is determined by the processed product on the slide table 50. What is necessary is just to set so that W may satisfy | fill the conditions which start. In this case, troublesome control is not necessary, and the equipment can be simplified.

  In the third embodiment, the recovery box 70 is detachably provided at one end in the sliding direction of the slide table 50. However, the recovery box 70 is detachable at the opposite end. It may be provided, or the collection boxes 70 may be detachably provided on both, and may be selectively used as necessary. For example, by properly using the collection boxes on both sides according to the material and plate thickness of the processed product W, it is possible to efficiently carry out sorting and recycling after collection.

<Fourth embodiment>
13 and 14 show the configuration of the discharge device of the fourth embodiment. In this discharge device, collection boxes 70 (70A, 70B) are detachably provided on both sides of the slide direction of the slide table 50, and one of the collection boxes 70A, 70B is selected and selected as necessary. The processed product W can be moved and collected to the collection boxes 70A and 70B.

  For example, when the processed product W is collected in the collection box 70A on the right side in FIG. 13, the operation of the air cylinder 60 is controlled as in the third embodiment. That is, as shown in FIG. 11, the air cylinder 60 is moved forward from one stroke end 60A to the other stroke end 60B, and the operation direction of the piston 66 is reversed by the solenoid switching valve 67 during the stroke. By doing so, the processed product W on the slide table 50 is slid and moved toward the collection box 70A on the right side as indicated by an arrow CA.

  On the other hand, when the processed product W is collected in the collection box 70B on the left side in FIG. 13, the operation of the air cylinder 60 is controlled contrary to the third embodiment. That is, as shown in FIG. 14, the air cylinder 60 is moved forward from the other stroke end 60B toward the one stroke end 60A, and the operation direction of the piston 66 is reversed by the solenoid switching valve 67 during the stroke. By doing so, the processed product W on the slide table 50 is slid and moved toward the collection box 70A on the left side as indicated by an arrow CB.

  That is, in the former case, the movement of the slide table 50 is a U-turn movement as shown by an arrow DA as shown in FIG. 11, and in the latter case, the movement of the slide table 50 is as shown in FIG. It moves like a U-turn as shown by arrow DB.

  In this way, simply by switching the control direction of the air cylinder 60, it is easily selected whether the processed product W is collected in the right collection box 70A or the processed product W is collected in the left collection box 70B. be able to. Therefore, it is possible to appropriately select the one that is easy to collect according to the surrounding environment of the processing machine.

DESCRIPTION OF SYMBOLS 1 Processing machine main body 10 Discharge device 10A Main box 20 Main frame 25 Sliding material 26 Stopper 28 Wheel 50 Slide table 60 Air cylinder 70 Collection box 102 Motor (rotation drive mechanism)
103 Cam plate (cam)
155 Roller (cam follower)

Claims (9)

In the discharge device installed at the lower part of the processing machine body and receiving processed products such as scrap and products falling from the processing machine body,
A main box that is disposed at a lower portion of the processing machine main body and receives the processed product falling from the processing machine main body, and a recovery box that is detachably attached to the discharge side of the processed product of the main box. ,
The main box is
The mainframe,
On the main frame, a slide table that is slidably mounted in a linear direction connecting the discharge side and the non-discharge side, and that receives the processed product falling from the processing machine main body,
A slide driving mechanism for reciprocatingly sliding the slide table to the discharge side and the counter discharge side to move the processed product from the slide table to the collection box mounted on the discharge side;
An apparatus for discharging a processed product in a processing machine, comprising: An apparatus for discharging a processed product in the processing machine according to claim 1,
The slide drive mechanism is
A cylinder mechanism for reciprocatingly sliding the slide table to the discharge side and the counter discharge side;
Drive control means comprising a speed control mechanism for changing the speed of the cylinder mechanism in the forward and backward movement of the rod of the cylinder mechanism;
An apparatus for discharging processed products in a processing machine, comprising: An apparatus for discharging a processed product in the processing machine according to claim 1,
The slide drive mechanism is
A rotation drive mechanism that is installed on the main frame and rotates a cam; and a cam follower that is connected to the slide table and engages with the cam to extract the rotational movement of the cam as a reciprocating slide movement of the slide table. It is composed of a cam mechanism with
An apparatus for discharging a processed product in a processing machine, wherein the cam profile of the cam mechanism changes speed during forward movement and backward movement. It is the discharge apparatus of the processed product in the processing machine of any one of Claims 1-3,
A processing machine comprising a stopper for forcibly stopping the slide table that slides toward the discharge side to move the processed product on the slide table to the collection box side using inertia. Ejection device for processed products in Japan. An apparatus for discharging a processed product in the processing machine according to claim 1,
The slide drive mechanism is
A cylinder mechanism for reciprocatingly sliding the slide table to the discharge side and the counter discharge side;
The expansion and contraction operation of the rod of the cylinder mechanism is controlled, and a sudden reversal operation point for sudden reversal from the forward operation to the reverse operation is provided in the middle of the stroke of the rod, and the acceleration of the sudden reversal operation is set on the slide table. Drive control means for setting so as to satisfy the conditions for the processed product to slide,
An apparatus for discharging processed products in a processing machine, comprising: An apparatus for discharging a processed product in the processing machine according to claim 1,
The slide drive mechanism is
A rotation drive mechanism that is installed on the main frame and rotates a cam; and a cam follower that is connected to the slide table and engages with the cam to extract the rotational movement of the cam as a reciprocating slide movement of the slide table. It is composed of a cam mechanism with
The cam profile of the cam mechanism provides a sudden reversing operation point at which the slide table suddenly reverses from a forward operation to a backward operation, and the acceleration of the sudden reversing operation is a condition under which the processed product on the slide table starts to slide An apparatus for discharging a processed product in a processing machine, characterized by being set to satisfy It is the discharge apparatus of the processed goods in the processing machine of any one of Claims 1-6,
An apparatus for discharging a processed product in a processing machine, wherein a sliding member for slidably guiding the slide table is provided on the main frame. It is the discharge device of the processed product in the processing machine of any one of Claims 1-7,
An apparatus for discharging a processed product in a processing machine, wherein a wheel capable of traveling on a floor surface is attached to a lower portion of the main frame. A discharge device for processed products in the processing machine according to any one of claims 1 to 8,
A processing machine characterized in that the discharge side and the non-discharge side can be replaced, the collection box is detachably mounted on the discharge side, and the moving direction of the processed product by the slide drive mechanism can be switched. Ejection device for processed products in Japan.

Images